Parentheses level

Description

Specify parenthesization style for generated code.

Category: Code Generation > Code Style

Settings

Default: Nominal (Optimize for readability)

Minimum (Rely on C/C++ operators for precedence)

Inserts parentheses only where required by ANSI^®¹ C or C++, or to override default precedence. For example:

Out = In2 - In1 > 1.0 && In2 > 2.0;

If you generate C/C++ code using the minimum level, for certain settings in some compilers, you can receive compiler warnings. To eliminate these warnings, try the nominal level.

Nominal (Optimize for readability)

Inserts parentheses in a way that compromises between readability and visual complexity. For example:

Out = ((In2 - In1 > 1.0) && (In2 > 2.0));

Standards (Parentheses for Standards Compliance)

Inserts parentheses in a way that requires both MISRA^®² compliance and better code readability. Code generated with this setting conforms to MISRA requirements. For example:

Out = ((In2 - In1 > 1.0) && (In2 > 2.0));

Maximum (Specify precedence with parentheses)

Includes parentheses to specify meaning without relying on operator precedence. Code generated with this setting conforms to MISRA requirements. For example:

 Out = (((In2 - In1) > 1.0) && (In2 > 2.0));

Command-Line Information

Parameter: ParenthesesLevel

Type: character vector

Value: 'Minimum' | 'Nominal' | 'Standards' | 'Maximum'

Default: 'Nominal'

Recommended Settings

Application	Setting
Debugging	`Nominal (Optimized for readability)`
Traceability	`Nominal (Optimized for readability)`
Efficiency	`Minimum (Rely on C/C++ operators for precedence)`
Standards Compliance	`Standards (Parentheses for Standards Compliance)`
Safety precaution	No recommendation